Related articles

One resident in Coimbra said they felt the building sway for "about 20 seconds", after two oncoming "waves" of tremors shook the region.

The witness said: "It felt a gentle sway of the building, and the structure of the building was heard to be stretched, but without any noise or intense crackling.

"The first wave was very noticeable, but it was the second that was stronger, followed by soft replicas that lasted for about 20 seconds."

Another witness in Santa Maria da Feira, 181km from the epicentre of the earthquake, wrote: "I heard a loud noise, followed by a great shake and a shock after several seconds. My house is in stone and shaken whole. My bed kept shaking for several seconds.